🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.49

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.56 AU - 0.76 AU

Year: 352 Days

Day: 27.6 Hours

Environment

Temp: -129 °C

Axial Tilt: 32.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 63,061,681 km

• M1: 214,075 km (0.097 R)
• M2: 701,764 km (0.064 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 133.7

Radius: 12.3

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.67 AU - 0.71 AU

Year: 376 Days

Day: 9.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 63,061,681 km

• M1: 153,039 km (0.056 R)
• M2: 589,864 km (0.071 R)
• M3: 2,020,918 km (0.083 R)
• M4: 2,463,877 km (0.079 R)
• M5: 2,853,131 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.1

Radius: 9.3

Gravity: 9.85 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.9 AU - 1.28 AU

Year: 747 Days

Day: 11.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,061,681 km

• M1: 115,789 km (0.086 R)
• M2: 422,614 km (0.104 R)
• M3: 803,490 km (0.042 R)
• M4: 1,250,489 km (0.044 R)
• M5: 2,266,408 km (0.058 R)
• M6: 3,892,237 km (0.063 R)
• M7: 4,235,415 km (0.106 R)
• M8: 5,146,017 km (0.115 R)
• M9: 5,696,837 km (0.055 R)
• M10: 6,307,345 km (0.089 R)
• M11: 7,142,550 km (0.093 R)
• M12: 8,351,750 km (0.073 R)
• M13: 8,661,118 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 735.1

Radius: 13.8

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.41 AU - 1.99 AU

Year: 1454 Days

Day: 11.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,061,681 km

• M1: 171,738 km (0.098 R)
• M2: 623,075 km (0.069 R)
• M3: 1,143,077 km (0.104 R)
• M4: 1,580,502 km (0.084 R)
• M5: 2,088,237 km (0.111 R)
• M6: 2,639,804 km (0.095 R)
• M7: 3,750,119 km (0.119 R)
• M8: 5,068,974 km (0.119 R)
• M9: 5,513,280 km (0.063 R)
• M10: 6,954,655 km (0.069 R)
• M11: 7,999,896 km (0.051 R)
• M12: 9,364,528 km (0.113 R)
• M13: 9,841,595 km (0.091 R)
• M14: 10,913,763 km (0.102 R)
• M15: 11,841,270 km (0.08 R)
• M16: 12,475,565 km (0.082 R)
• M17: 13,211,287 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282.7

Radius: 11.5

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.75 AU - 4.58 AU

Year: 4593 Days

Day: 11 Hours

Environment

Temp: -200 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 63,061,681 km

• M1: 143,016 km (0.114 R)
• M2: 501,153 km (0.107 R)
• M3: 908,358 km (0.072 R)
• M4: 1,586,785 km (0.077 R)
• M5: 2,015,083 km (0.098 R)
• M6: 2,418,848 km (0.068 R)
• M7: 2,893,223 km (0.082 R)
• M8: 3,320,325 km (0.095 R)
• M9: 3,829,107 km (0.062 R)
• M10: 5,221,115 km (0.084 R)
• M11: 7,727,777 km (0.117 R)
• M12: 8,251,370 km (0.099 R)
• M13: 8,833,605 km (0.11 R)
• M14: 9,627,670 km (0.102 R)
• M15: 10,273,185 km (0.096 R)
• M16: 10,826,398 km (0.119 R)
• M17: 13,286,385 km (0.117 R)
• M18: 15,578,075 km (0.109 R)
• M19: 16,790,566 km (0.036 R)
• M20: 17,447,600 km (0.095 R)
• M21: 19,224,523 km (0.111 R)
• M22: 20,248,670 km (0.101 R)
• M23: 20,618,626 km (0.078 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 965.5

Radius: 4.1

Gravity: 57.44 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 7.07 AU - 7.27 AU

Year: 12595 Days

Day: 22.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 63,061,681 km

• M1: 59,241 km (0.071 R)
• M2: 191,784 km (0.104 R)
• M3: 783,594 km (0.114 R)
• M4: 1,114,055 km (0.078 R)
• M5: 1,776,026 km (0.035 R)
• M6: 2,220,780 km (0.107 R)
• M7: 2,556,179 km (0.083 R)
• M8: 3,327,206 km (0.073 R)
• M9: 5,385,823 km (0.063 R)
• M10: 7,373,978 km (0.096 R)
• M11: 7,555,141 km (0.109 R)
• M12: 11,346,400 km (0.076 R)
• M13: 12,333,447 km (0.075 R)
• M14: 14,406,275 km (0.097 R)
• M15: 14,832,629 km (0.119 R)
• M16: 19,483,327 km (0.036 R)
• M17: 25,842,583 km (0.105 R)
• M18: 28,419,855 km (0.069 R)
• M19: 31,995,693 km (0.104 R)
• M20: 33,087,459 km (0.08 R)
• M21: 36,773,849 km (0.032 R)
• M22: 44,349,785 km (0.09 R)
• M23: 45,553,748 km (0.045 R)
• M24: 53,576,084 km (0.117 R)
• M25: 54,426,697 km (0.115 R)
• M26: 55,632,456 km (0.11 R)
• M27: 56,504,462 km (0.091 R)
• M28: 57,385,594 km (0.085 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 607.2

Radius: 5.9

Gravity: 17.44 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 7.42 AU - 9.42 AU

Year: 16028 Days

Day: 19.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 63,061,681 km

• M1: 73,303 km (0.073 R)
• M2: 269,426 km (0.093 R)
• M3: 819,946 km (0.075 R)
• M4: 1,313,170 km (0.089 R)
• M5: 1,791,135 km (0.086 R)
• M6: 2,797,181 km (0.087 R)
• M7: 3,012,153 km (0.11 R)
• M8: 5,081,391 km (0.088 R)
• M9: 5,813,224 km (0.067 R)
• M10: 6,529,947 km (0.111 R)
• M11: 6,995,944 km (0.108 R)
• M12: 11,016,986 km (0.116 R)
• M13: 11,555,089 km (0.1 R)
• M14: 12,048,014 km (0.042 R)
• M15: 12,236,507 km (0.118 R)
• M16: 12,554,852 km (0.117 R)
• M17: 12,813,506 km (0.095 R)
• M18: 13,746,997 km (0.113 R)
• M19: 15,673,818 km (0.107 R)
• M20: 21,218,663 km (0.077 R)
• M21: 25,391,396 km (0.052 R)
• M22: 33,424,054 km (0.065 R)
• M23: 34,803,047 km (0.111 R)
• M24: 38,483,603 km (0.116 R)
• M25: 42,415,484 km (0.119 R)
• M26: 43,291,529 km (0.105 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 275 - 14,164 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit